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[Chemical Knowledge]：Properties and Uses of Phosphoric Acid

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The properties and uses
of phosphoric acid in the field of chemical production raw materials
1. the properties of phosphoric acid

phosphoric acid (H3PO4) is a strong acid with good thermal stability and chemical stability. Its characteristics mainly include the following:

1. Acidic: phosphoric acid is a kind of medium and strong acid, with acid generality, such as can react with alkali to generate salt and water, can react with metal to generate hydrogen and the corresponding phosphate.
2. Oxidation: Phosphoric acid has a certain degree of oxidation, which can oxidize some metals and non-metallic substances.
3. Complexability: Phosphoric acid can form complexes with many metal ions, which play an important role in many chemical processes.

2. the use of phosphoric acid

phosphoric acid in the field of chemical production raw materials has a wide range of uses, mainly for the production of various phosphates and phosphides, these compounds in food, medicine, agriculture, metallurgy and other industries have important applications.

1. Food industry: As a food additive, phosphoric acid can be used to adjust the acidity and taste of food, and can also be used to prepare phosphate as a food nutrition enhancer and preservative.
2. Pharmaceutical industry: Phosphoric acid is mainly used as raw materials and excipients for drugs in the pharmaceutical industry, such as for the preparation of calcium phosphate and other bone materials, as well as solvents and acidifiers for some drugs.
3. Agriculture: Phosphoric acid can be used to prepare phosphate fertilizer, improve soil fertility and improve crop growth environment.
4. Metallurgical industry: Phosphoric acid can be used to extract metals, such as iron, aluminum and other metals from ores, as well as phosphating treatment on metal surfaces to improve the corrosion resistance and wear resistance of metals.

In general, phosphoric acid plays an important role in the field of chemical production raw materials, and its wide range of uses makes phosphoric acid an indispensable raw material in many chemical processes.

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